Dear Doctor: Marijuana seems to be increasingly accepted in our country. But I worry about my kids using it. Is it addictive?... more

Dear Doctor: A woman in the mall near our home collapsed and wasn't breathing. A shopper performed CPR until the paramedics showed up. Later, my friends and I realized that none of us could have helpe... more

Dear Doctor: I have been taking fish oil capsules daily over the last five years. Is there any benefit in doing this?... more

Dear Doctor: Our young son fell off his skateboard recently, and the items my wife and I needed to tend to his cuts and scrapes were scattered throughout the house. Now we want to assemble a home firs... more

Dear Doctor: If I received the flu shot in September, will I still be protected from the flu in March?... more

Dear Doctor: We live in a charming older home, but some of the paint looks old. How worried should I be that it might contain lead?... more

Dear Doctor: I want to start feeding my baby solid food, but I read that rice cereal is contaminated with arsenic. What should I do?... more

Dear Doctor: My teenagers refuse to eat vegetables unless they're fried. Are they doomed to obesity and ill health?... more

Dear Doctor: Do I really need a yearly mammogram?... more

Dear Doctor: I'm going sailing with friends soon. Since I tend to get motion sickness in cars and airplanes, I'm worried that means I'll get seasick as well. Are there any natural remedies?... more

Dear Doctor: Should I take large doses of vitamin D to prevent osteoporosis?... more

Dear Doctor: I love to go for long walks and lately have noticed that I'm developing pain in my hip joints. I think that's just part of aging, but my daughter is urging me to try a glucosamine supplem... more

Dear Doctor: Does my cholesterol medication increase my risk of cancer?... more

Dear Doctor: Everyone in my partner's family loves coffee, but I'm like the rest of my family -- we can take it or leave it. Is it possible that a love of caffeine is in their genes?... more

Dear Doctor: If you don't have risk factors for having a heart attack, should you be taking aspirin every day?... more

Dear Doctor: If there's no proof that flossing is beneficial, do I really need to do it?... more

Dear Doctor: My daughter had the chickenpox vaccine as a child, so she never had chickenpox. She's now an adult. Should she get a booster?... more

Dear Doctor: My father passed away six months ago, and ever since, my elderly mother has withdrawn from all social activity. I can't help wondering if this poses a problem for her mental health.... more

Dear Doctor: I'm a 45-year-old man. Do I really need a PSA test every year?... more

Dear Doctor: I read that sugar might be worse for your heart than fat. Should I give up sweets?... more

Dear Doctor: I enjoy a nice glass of wine at the end of the day, but I've heard various reports about its health risks. So, tell me: In women, does alcohol increase or decrease the chances of prematur... more

Dear Doctor: I heard about a polio outbreak in Nigeria this summer. Might there be an outbreak here in the United States?... more

Dear Doctor: Will taking acetaminophen (Tylenol) during pregnancy increase the chances that the child will have ADHD or autism?... more

Dear Readers: Welcome to the second day of our new "Ask the Doctors" column. As an internist and primary care physician at UCLA Health, my approach to medicine is to understand that I don't have all t... more